IP Library Assignment 006773/0986
Patent Assignment
Reel/Frame 006773/0986

Assignment of Assignor's Interest

Recorded: 1993-11-26 Pages: 2
Assignors
DREWES, ROLF
Executed: 1991-04-17
FRIEDRICH, HANS-HELMUT
Executed: 1991-04-17
Assignee
CIBA-GEIGY CORPORATION
PATENT DEPARTMENT, 444 SAW MILL RIVER ROAD, ARDSLEY, NEW YORK, 10502
Covered Property (1)
Substituted Pyrroles Phenols as Stabilisers for Chlorinated Polymers
Patent: 5,288,776 →
Application: 07/709,690 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Mar 17, 1997
From: CIBA-GEIGY CORPORATION
To: CIBA SPECIALTY CHEMICALS CORPORATION
Reel/Frame 008454/0067 →